Patent US2742885A successfully refreshed from Google Patents.
US2742885A
Expired / Lapsed
US
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Method of fuel combustion control in internal combustion engines
Assignee: Individual
•
Filing: 1946-03-04
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Granted: 1956-04-24
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Expires: 1966-03-04
Abstract
No abstract record available.
Inventors
- 👤 Herman L Thwaites
- 👤 Nathaniel H Rickles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:54
CPC Classifications
F; F02; F02B; F02B47/00; F02B47/04; F02B47/08; F02B47/10; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
THE METHOD OF OPERATING INTERNAL COMBUSTION ENGINES COMPRISING THE STEPS OF INTRODUCING INTO A CYLINDER OF AN INTERNAL COMBUSTION ENGINE TO SUPPORT COMBUSTION OF FUEL THEREIN A MIXTURE CONSISTING OF DEFINITE PROPORTIONS OF APPROXIMATELY PURE OXYGEN AND GAS EXHAUSTED FROM THE ENGINE AND WATER SCRUBBING THE EXHAUST GAS TO REDUCE THE CONCENTRATION OF THE CARBON DIOXIDE PRIOR TO ADDING TO THE MIXTURE, AND MAINTAINING APPROXIMATELY 20% WATER VAPOR IN SAID MIXTURE TO KEEP THE AMOUNT OF PURE OXYGEN THEREIN AT A MINIMUM FOR SATISFRACTORY OPERATION.
Claim 2
Independent Claim
85 words
THE METHOD OF OPERATING INTERNAL COMBUSTION ENGINES COMPRISING THE STEPS OF INTRODUCING INTO A CYLINDER OF AN INTERNAL COMBUSTION ENGINE TO SUPPORT COMBUSTION OF FUEL THEREIN A MIXTURE CONSISTING OF DEFINITE PROPORTIONS OF APPROXIMATELY PURE OXYGEN AND GAS EXHAUSTED FROM THE ENGINE AND WATER SCRUBBING THE EXHAUST GAS TO REDUCE THE CONCENTRATION OF THE CARBON DIOXIDE PRIOR TO ADDING TO THE MIXTURE, AND MAINTAINING APPROXIMATELY 20% WATER VAPOR IN SAID MIXTURE TO KEEP THE AMOUNT OF PURE OXYGEN THEREIN AT A MINIMUM FOR SATISFRACTORY OPERATION.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |